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Haubits m/40

From Wikipedia, the free encyclopedia
10,5 cm Haubits m/40
10,5 cm Haubits m/40
TypeHowitzer
Place of originSweden
Service history
In service1940–present
WarsWorld War II
Production history
DesignerBofors
Designed1937
ManufacturerBofors
Tampella
Produced1940–
Variants105 H 37 (Finnish version)
105 H 61-37 (modernized Finnish version)
10.5 cm Hb Model 46 (Swiss version)
Specifications
Mass1,970 kg
Length5.310 m
Crew7 + 3 reserve

ShellHigh explosive
Caliber105 mm
BreechHorizontal sliding-wedge breech or interrupted screw breech
CarriageSplit trail with recoil spades
Elevation-5 to +45 degrees
Traverse50 degrees
Rate of fire10 rounds per minute
Maximum firing range10,900 m

The 10,5 cm Haubits m/40 is a Swedish 105 mm howitzer, which was manufactured by Bofors during World War II.

The howitzer was license manufactured both in Finland and in Switzerland. Today, the gun is mainly used as a training gun by the Estonian army.

Operators

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 Estonia
105 H 61-37 version. Ca. 40 units from Finland. Used as training guns.
 Finland
105 H 61-37 version. 140 units, now withdrawn from service, ca. 40 were given to Estonia.
 Netherlands
Used in Dutch East Indies
 Sweden
10,5 cm Haubits m/40, about 400 units in five versions or alterations.
 Switzerland
10.5 cm Hb Model 46 version
 Thailand

Versions

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An H 61–37 in Hameenlinna Museum
10,5 cm Haubits m/40
Original Swedish version
105 H 37
Finnish version manufactured by Tampella
105 H 61-37
Finnish modernized version from the 1960s. Longer L/26 barrel with redesigned muzzle brake, new equilibrators and fixed ammunition for improved rate of fire.
10.5 cm Hb Model 46
Swiss version manufactured in Thun

Specifications

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  • Era: World War II
  • Name: 105 mm Haubits m/40
  • Type: Howitzer
  • Nation: Sweden
  • Manufacturer: Bofors
  • Target: General
  • Date: 1937
  • Production date: 1940–
  • Service date: 1940–1990s
  • Numbers built
  • Operators: Siam (today Thailand), Netherlands East Indies (today's Indonesia) and in Finland built under license from Bofors as the m/37, Switzerland built under license from Bofors as 10,5 cm Hb Model 46
  • Breech mechanism: Horizontal sliding-wedge breech or interrupted screw breech
  • Barrel: 22 or 24 (bore 20,2 cal)
  • Elevation: -5 to +45°
  • Traverse: 50°
  • Caliber:105×155 mm
  • Carriage: Split trail with spades
  • Weight: 1970 kg
  • Length: 5310 mm
  • Shell types:
  • Action: Case-type separate loading, 6 charges
  • Muzzle velocity: max 449 m/s
  • Tactical range: 10,5 km
  • Maximum range: 10,9 km
  • Rate of fire:
  • Crew:7 + 3 reserve
  • Transportation: Horse drawn, after 1950 motor traction
  • Miscellaneous: Perforated muzzle brake

Ammunition

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Variants

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